Mentai Park Oarai

Mentai Park Oarai is located in Higashi Ibaraki-gun, in eastern Ibaraki Prefecture. This theme park is run by Kanefuku, a long-established manufacturer of Mentaiko.
Mentaiko is a Japanese style of spicy processed cod roe, and there are 5 similar Mentaiko-themed parks in Japan. Among them, Mentai Park Oarai is the only one in the Kanto region. At their maximum, they can produce 5 tons of Mentaiko per day.
At the gallery in the factory, visitors can have an up-close look into the manufacturing process of Mentaiko. There is also a wholesale shop, where Mentaiko can be purchased right as it comes out of the factory. At the gallery, you can also learn how to make Mentaiko with videos and games, making this a great destination for both children and adults.
In their food section, they offer various foods such as extra large rice balls with Mentaiko and soft drinks. I especially recommend the Mentaiko soft ice cream. This rare flavor of ice cream has the soft fragrance of Mentaiko, and is one that keeps you coming back for more.
You can visit other interests close by as well. These are the major sightseeing spots of Ibaraki, such as Aqua World Oarai Aquarium, and the National Hitachi Kaihin Park.